Reviving the thread for an update:
The UFL has apparently suspended operations as of 10/20 after playing only four weeks of a planned eight week regular season. That leaves CBSSN with some holes in its schedule over the next several weeks.
Allegedly the UFL will resume the season next spring, but in reality it is probably done, joining the WFL, USFL, WLAF, NFL-E, RFL, SFL, and the XFL as another failed alternative league.
CBSSN may think twice about the deal with the yet-to-be-launched SPFL for next spring. The New USFL has already pushed its launch date back to 2014.
Arena Football is hanging on by its fingernails, but might not be long for this world. Wouldn't surprise me if NFL Network passes on running it next year.